They are called vaporizers...here is a pic
of one.
http://
www.vaporstore.com/proddetail.php?prod=Vap
orTower
They work great and keep the smoke in and
they come in many different styles and
forms.
The vaporizer works by heating up the
material above the temperature at which
the natural oils will boil out, but below
the temperature at which the plant
material itself will burn. This is
accomplished by drawing air over a heat
source and then through the material.
There is an ideal temperature range that
must be attained during the vaporization
process. If the material is not heated up
enough, then the valuable oils may not be
fully volatized and you will not get a
proper hit. If the material is heated up
too much then you can char or even burn
the material. The temperature of the
material can be controlled mainly by
manipulating two variables; the
temperature of the heat source(as
indicated by the intensity of red/orange
glow) and the speed at which the air is
drawn over the material(a result of how
hard the user inhales).
If you draw slowly, then each unit volume
of hot air inhaled spends more time in
contact with the plant material thereby
resulting in more heat transfer to the
material and higher material temperatures.
If you draw faster, then the hot air has
less time to heat the material before it
has passed the material by. Therefore, the
hotter the iron is, the faster that you
will have to inhale in order not to char
the material. Conversely, if the iron is
cooler, then you will have to inhale
slower in order to heat the material
enough to vaporize the oils. This
relationship can at first seem
counterintuitive since not getting a good
hit can result if the vaporizer is hit too
hard (relative to the instantaneous
temperature of the heat source). It will
take a bit of practice to discover the
temperature that works well for your own
style of draw.
The latest hot air vaporizer:
* Uses no combustion
* Tastes better
* More potent than before
* Variable Temperature Control
* Upgraded power
* Ultra-efficient
* Instantaneous......No more stale
vapors!
* Easy to use
* Much healthier
* Saves you money
Vaporization occurs through a process that
takes advantage of the physical properties
of the nicotine resins. These resins turn
into a vapor around 380 degrees F. and the
material does not start to combust until
well above that, say around 450 degrees F.
or so. The material is heated until the
nicotine resins volatize into a thin,
cool, clear oil vapor mist.
This bypasses the combustion process,
leaves out all the side products and side
gases of an actual self-sustaining fire.
Heavy debris like ash, and obvious toxic
gases like CO2 and carbon monoxide as well
as several other highly noxious gases.
Naturally the oil vapor is much cleaner,
cooler and less irritating than the much
hotter smoke, providing a more flavorful
taste. Studies indicate that about 20% -
40% of nicotine is destroyed or
flash-fried by hot gas lighters, leaving
the transfer rate of actual nicotine in
vaporizers higher than other devices of
intake such as a tobacco pipe.
Consequently, it is not only better for
your health, but also a more efficient way
to enjoy medical marijuana.
